Easy1

Point: 100

Category

Cryptography

Question

The one time pad can be cryptographically secure, but not when you know the key. Can you solve this? We've given you the encrypted flag, key, and a table to help UFJKXQZQUNB with the key of SOLVECRYPTO. Can you use this table to solve it?.

Hint

• Submit your answer in our competition's flag format. For example, if you answer was 'hello', you would submit 'picoCTF{HELLO}' as the flag.

• Please use all caps for the message.

Solution

This is a classic Vigenère cipher. We can use CyberChef tool to solve this challenge.

Flag

picoCTF{CRYPTOISFUN}